No Thumbnail Available

A report on Gracilaria farming development and management of natural seaweed grounds in eastern Sorsogon

Seaweed Production Development

Year of publication 1992

Pages p. 26

Author Medina N. Delmendo;Fisheries and Aquaculture Management Division

Product type Project

Edition 1

Synopsis (short abstract) The paper describes the general physical and demographic features of eastern Sorsogon where Gracilaria farming is being developed. Gracilaria, like the Eucheuma seaweeds prior to farming, are presently gathered from the wild stocks. Unless some form of management is introduced, the natural seaweed beds will be depleted due to intensive collection for cash income by the fishing community. Initial development activities carried out by the Project, PHI/89/004, is presented with recommendations for immediate future action to ensure sustainability of development efforts being provided by the project.

Cite this content as:

Delmendo, M.N. Feb 1992. A report on Gracilaria farming development and management of natural seaweed grounds in eastern Sorsogon. Manila (Philippines). 26 p.

Language English

Also available in:
No results found.

Related items

Showing items related by metadata.

  • No Thumbnail Available
    Project
    Seaweed (Gracilaria) farming trials in Sorsogon, the Philippines
    Seaweed Production Development
    1993
    Also available in:
    No results found.
    The paper is on experimental farming trials carried out in Sorsogon Bay and the eastern coastal areas of Sorsogon, the Philippines, using Gracilaria species found in the area. Four major Gracilaria species - G. firma (=G. fisheri), G. fastigiata, G. cylindrica (=G. changii) and G. tenuistipitata - were recognised and used in the trials. Fixed bottom monoline (10 × 10 meter plot), floating raft monoline (5 × 5 meter) and pond (in brackish water fish pond) farming trials at 18 localities in the ar ea were conducted. Three environmental conditions were identified : high salinity/ clear water/ firm substrate; high salinity/ semi-clear water/ sandy-mud substrate; and low salinity/ semi-clear water/ muddy substrate. Under optimum environmental condition during early part of year, an average daily percentage growth rate for G. fastigiata, G. firma, G. cylindrica and G. tenuistipitata was observed to be 9.0%, 8.7%, 9.1% and 11.2% respectively from monoline farming trials. For G. fastigiata and G. firma, an average weight attained after 54 days of growing period with initial average individual seed plant of 35.3 grams and 51.0 grams were recorded as 505.2 grams and 1,005.8 grams respectively from fixed bottom monoline farming trials.
  • No Thumbnail Available
    Project
    The evolution of seaweed farming development and its relevance to rural agro-industrial development of coastal communities in the Philippines
    Seaweed Production Development
    1992
    Also available in:
    No results found.
    The paper describes the historical development of Eucheuma seaweeds farming in the Philippines, how it started and the present status of the industry. It also introduces the on-going development towards the farming of Gracilaria as a means of diversifying seaweed production and improving the socio-economic conditions of rural coastal communities.
  • No Thumbnail Available
    Project
    Preliminary report on the site evaluation/assessment and collection trip for seaweed farming at Sorsogon, the project area
    Seaweed Production Development
    1992
    Also available in:
    No results found.
    Preliminary site evaluation assessment for seaweed farming was carried out at project area Sorsogon. Site evaluation were conducted at sites of four municipalities, namely Prieto-Diaz, Gubat, Matnog and Barcelona. These sites represent three different seaweed habitats such as: sandy reef flats, rocky reef with sandy patches and sandy-muddy flats within bays with freshwater influence. On preliminary taxonomic examination, seven species of Gracilaria were recognised. These are: G. changii (=G. cyl indrica). G. fastigiata, G. firma, G. salicornia, G. tenuistipitata, G. eucheumoides and G. coronopifolia.
Show more

Users also downloaded

Showing related downloaded files

No results found.